Martin Westerstrand (born 6 December 1973 in Gothenburg) is a Swedish rock vocalist best known as the frontman of LOK and Lillasyster. He co-founded LOK in 1995, and after the band split in 2002 he launched what would become Lillasyster - a band that ran for nearly two decades, released seven albums and earned gold and platinum records before its farewell in late 2024. LOK reunited in 2019 and remains active.
Martin Westerstrand performed a full live set with LOK at Midsommarrock festival in Mellbystrand, Sweden.
Lillasyster completed their farewell tour with a final Stockholm show on 18 October 2024, followed by the last-ever concert in Gothenburg on 19 October.
Lillasyster announced their disbandment and released the final album 'Tack och Förlåt', kicking off a farewell tour across roughly 30 Swedish venues.
LOK had a concert date listed at Slaktkyrkan in Johanneshov, Stockholm in 2026, confirming the band remains active after Lillasyster's closure.
Lillasyster appeared in Melodifestivalen 2022 with 'Till Our Days Are Over', reaching the semi-final and landing on Spotify Sweden's Top 50 chart.
